温拌剂对系列SMA沥青混合料高低温性能研究  

High and low temperature performance of warm mix agent for series SMA asphalt mixture

作　　者：张涛[1] 吴金荣[1,2] 王峥 ZHANG Tao;WU Jin-rong;WANG Zheng(School of Civil Engineering&Architecture,Anhui University of Science&Technology,Huainan 232001,China;Center for Underground Mine Construction Engineering Research,Ministry of Education,Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]安徽理工大学矿山地下工程教育部工程研究中心,安徽淮南232001

出　　处：《河南城建学院学报》2021年第4期42-46,57,共6页Journal of Henan University of Urban Construction

基　　金：安徽省高校自然科学重点研究项目(KJ2017A096)。

摘　　要：在SMA-10、SMA-13、SMA-16三种级配中添加JY-W1温拌剂,采用50次、75次击实马歇尔稳定度试验和小梁弯曲试验研究沥青混合料高低温性能。结果表明:JY-W1温拌剂对三种级配的沥青混合料高温性能均有较大改善;SMA-10沥青混合料低温性能降低,SMA-13沥青混合料低温性能改善不明显,SMA-16沥青混合料低温性能较好。JY-W1温拌剂的有效成分会与沥青组分重新结合,生成新的聚集体并改变沥青流变性能,进而影响沥青混合料的高低温性能。By adding JY-W1 warm mix to SMA-10,SMA-13 and SMA-16,the high and low temperature performance of asphalt mixture is studied by 50 and 75 compaction Marshall stability tests and trabecular bending tests.The results show that JY-W1 warm mix can greatly improve the high temperature performance of asphalt mixture with three grades.The low-temperature performance of SMA-10 graded asphalt mixture decreases,the improvement of SMA-13 graded asphalt mixture is not obvious,and SMA-16 graded asphalt mixture has better low-temperature performance.The effective components of JY-W1 warm mix agent will recombine with asphalt components to form new aggregates and change the rheological properties of asphalt,thus affecting the high and low temperature performance of asphalt mixture.

关 键 词：SMA 温拌剂 击实次数 高低温性能 改性机理 

分 类 号：U414[交通运输工程—道路与铁道工程]